172916322 has 16 divisors (see below), whose sum is σ = 345967680. Its totient is φ = 57616272.

The previous prime is 172916279. The next prime is 172916351. The reversal of 172916322 is 223619271.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20004 + ... + 27312.

It is an arithmetic number, because the mean of its divisors is an integer number (21622980).

Almost surely, 2^172916322 is an apocalyptic number.

172916322 is an abundant number, since it is smaller than the sum of its proper divisors (173051358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172916322 is a wasteful number, since it uses less digits than its factorization.

172916322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11257.

The product of its digits is 9072, while the sum is 33.

The square root of 172916322 is about 13149.7650929589. The cubic root of 172916322 is about 557.1156132259.

The spelling of 172916322 in words is "one hundred seventy-two million, nine hundred sixteen thousand, three hundred twenty-two".